CN111421215B

CN111421215B - Lug feeding device of wire harness threading pipe welding machine

Info

Publication number: CN111421215B
Application number: CN202010218155.8A
Authority: CN
Inventors: 曲容容; 侯亚呵; 李福娣; 李家英
Original assignee: Suzhou Dongtinghe Intelligent Technology Development Co Ltd
Current assignee: Suzhou dongtinghe Intelligent Technology Development Co., Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-11-02
Anticipated expiration: 2040-03-25
Also published as: CN111421215A

Abstract

The invention relates to a connecting lug feeding device of a wire harness threading pipeline welding machine, which comprises a circular vibration component, a straight vibration component, a material ejecting component, a material baffle plate, a receiving component, a hydraulic cylinder, a movable plate and a bottom plate; the circular vibration is connected with the direct vibration, the discharge end of the direct vibration is connected with the ejection assembly, and the striker plate is arranged on the side of the ejection assembly; a square hole is formed in the moving plate, and the material ejecting assembly is located in the square hole; the hydraulic cylinder set up on the movable plate, connect and get the subassembly and install on hydraulic cylinder's flexible end, connect and get the subassembly and be located the top of liftout subassembly. The invention has the advantages of reliable and efficient separation of the connecting lugs, accurate moving and transportation and high welding efficiency.

Description

Lug feeding device of wire harness threading pipe welding machine

Technical Field

The invention relates to the technical field of wire harnesses, in particular to a connecting lug feeding device of a wire harness threading pipeline welding machine.

Background

In the production process of the wire harness, the electric wires and the like, the wire harness bundling operation is often required, wherein the wire harness is generally connected through a binding tape, but the binding tape can only bind the wire harness and cannot be connected to machine equipment. As shown in fig. 7, a wire harness threading pipe includes a pipe 100, a coupling lug 200, a clip 300, and a wire outlet pipe 400; the connecting lug 200, the clamping piece 300 and the wire outlet pipe 400 are fixed on the pipeline 100 by a welding method, the invention is used for welding the connecting lug 200, and the clamping piece 300 and the wire outlet pipe 400 are welded by the previous working procedure; the engaging lug 200 is used to bolt the wire harness threading pipe to the machine, the clip 300 is used to clip the electric wire outside the pipe 100 to fix the electric wire, and the outlet pipe 400 is used to lead the electric wire out of the pipe 100.

The existing wire harness threading pipeline welding technology has the following defects: 1. the connecting lug is small in structure, difficult to clamp and complex in feeding action; the connecting lugs need to be transported, positioned and welded when being welded, and the efficiency among a plurality of working procedures is low; 2. the positioning center of the pipeline is difficult to find, the circular part needs to rotate when being uniformly welded on the circumference, and the efficiency is low; the pipe may deform when pressure is applied to it, affecting roundness.

Disclosure of Invention

The purpose of the invention is: aiming at the problems that the connecting lug in the prior art is small in structure, difficult to clamp and complex in feeding action; need transport, location and welding when engaging lug welds, the problem of the inefficiency between a plurality of processes provides an engaging lug separation reliable high-efficient, moves the transport accurately, welds the engaging lug loading attachment of efficient pencil threading pipeline welding machine.

For the purpose of the invention, the following technical scheme is adopted for realizing the purpose:

a connecting lug feeding device of a wire harness threading pipeline welding machine comprises a circular vibration component, a straight vibration component, a material ejecting component, a material baffle plate, a receiving component, a hydraulic cylinder, a movable plate and a bottom plate; the circular vibration is connected with the direct vibration, the discharge end of the direct vibration is connected with the ejection assembly, and the striker plate is arranged on the side of the ejection assembly; the bottom plate is fixed on the rack, a guide pillar is arranged on the bottom plate, the moving plate is movably connected to the bottom plate through the guide pillar, a return spring is arranged between the moving plate and the bottom plate, and the return spring presses the moving plate to the inner side; a square hole is formed in the moving plate, and the material ejecting assembly is located in the square hole; the hydraulic cylinder set up on the movable plate, connect and get the subassembly and install on hydraulic cylinder's flexible end, connect and get the subassembly and be located the top of liftout subassembly.

Preferably, the receiving assembly comprises a first positive electrode block, a second positive electrode block, a cushion seat, a fixed clamping block, a butting seat, a movable clamping block and a compression spring; the second positive electrode block is fixedly connected with the first positive electrode block; the cushion seat is arranged at the end part of the second positive electrode block, and the cushion seat is provided with a cambered surface corresponding to the connecting lug; the fixed clamping block is fixedly arranged at the side end of the second positive electrode block, the abutting seat is fixedly arranged at the other side end of the second positive electrode block, the movable clamping block is matched in the abutting seat, and the pressing spring is arranged between the abutting seat and the movable clamping block to press the movable clamping block on the cushion seat; the side surface of the movable clamping block is provided with a transverse groove.

Preferably, the first positive electrode block and the second positive electrode block are made of copper materials, flow channels are arranged inside the first positive electrode block and the second positive electrode block, and insulating cooling liquid is arranged in the flow channels.

Preferably, the pad is made of copper material with good conductivity.

Preferably, the ejection assembly comprises an ejection cylinder and an ejection plate; the ejector plate is arranged at the telescopic end of the ejector cylinder, a groove is formed in the top of the ejector plate and used for placing a connecting lug, a vertical plane is arranged on one side, close to the material rail, of the ejector plate, and the plane is attached to the end portion of the material rail; and a notch is arranged on the side of the top end of the ejector plate and used for clamping the edge of the connecting lug by the receiving assembly.

Preferably, the material blocking plate is provided with a proximity sensor, the proximity sensor is directly aligned to the vibrating material rail, and the proximity sensor is used for controlling the movement of the material ejecting assembly.

Preferably, the straight vibration is provided with a material rail, and the shape of the material rail is suitable for the movement of the connecting lug.

A connection lug feeding device of a wire harness threading pipeline welding machine works, when the wire harness threading pipeline welding machine works, circular vibration and direct vibration send a connection lug into a material ejecting plate, and then a material ejecting cylinder lifts up the material ejecting plate; make the engaging lug card between fixed clamp splice and activity clamp splice, then hydraulic cylinder extension is seen off the engaging lug, is close to the pipeline outer wall, realizes the material loading.

A wire harness threading pipeline welding machine comprises a rack, and a pipeline carrying device, a connecting lug feeding device, a pipeline jig device, a feeding seat assembly and a discharging seat assembly which are arranged on the rack; the connecting lug feeding devices are uniformly arranged on the periphery of the pipeline jig assembly, the feeding seat assembly and the discharging seat assembly are arranged on two sides of the pipeline jig assembly, and the pipeline carrying device is positioned above the pipeline jig assembly, the detection discharging assembly and the discharging seat assembly; the connecting lug feeding device of the wire harness threading pipe welding machine adopts the technical scheme.

Preferably, the pipeline conveying device is used for conveying, loading and unloading pipelines; the pipeline jig device is used for positioning and clamping a pipeline to be welded, and the connecting lug feeding device of the wire harness threading pipeline welding machine is used for feeding the connecting lugs; the connecting lug feeding device is matched with the pipeline jig device to complete welding of the connecting lug and the pipeline; the feeding seat assembly is used for pipeline feeding and positioning before feeding, and the discharging seat assembly is used for discharging and inspecting during discharging.

The connecting lug feeding device of the wire harness threading pipeline welding machine adopting the technical scheme has the advantages that: the clamping device has the advantages that the mode that the fixed clamping blocks and the movable clamping blocks clamp the connecting lugs is adopted, the clamping force is controlled through the springs, unnecessary power parts are eliminated, the mechanism is simple and reliable, the connecting lugs are clamped and clamped through the transverse grooves, the clamping is more stable, and the falling is prevented; the connection lug is separated, conveyed, positioned and clamped through the material ejecting assembly, and the conveying precision and efficiency can be improved by a mode of passively feeding the connection lug to a specified position; welding is carried out in a butt-joint mode, and the welding efficiency is high.

The wire harness threading pipeline welding machine adopting the technical scheme has the advantages that:

1. the connecting lug feeding device clamps the connecting lugs by arranging the fixed clamping blocks and the movable clamping blocks, the clamping force is controlled by the springs, unnecessary power parts are eliminated, and the mechanism is simple and reliable, clamps the connecting lugs and simultaneously clamps the connecting lugs through the transverse grooves, so that the clamping is more stable and the dropping is prevented; the connection lug is separated, conveyed, positioned and clamped through the material ejecting assembly, and the conveying precision and efficiency can be improved by a mode of passively feeding the connection lug to a specified position; welding is carried out in a butt-joint mode, and the welding efficiency is high.

2. The pipeline jig device is driven by arranging three outward-expanding plates and a matched conical column, and the centers of pipelines can be found more easily when the three outward-expanding plates move; by arranging the clamping block, the clamping block can be positioned and clamped and can also serve as an electrode in butt welding, so that the positioning and welding steps are simplified, and the welding efficiency is improved; the three directions are processed simultaneously, so that the acting force can be offset, and the welding precision is improved; through conical surface transmission, can improve the clamp force, also can prevent the direction drive, carry out the auto-lock, better protection die clamping cylinder.

3. The feeding seat assembly and the discharging seat assembly carry out feeding position correction and discharging detection, and the success rate of assembly and the qualification rate of products are improved.

Drawings

FIG. 1 is an exploded view of a wire harness threading pipe welder according to an embodiment of the present invention.

Fig. 2 is an exploded view of the pipe-handling apparatus.

Fig. 3 is an exploded view of the lug loading device.

Fig. 4 is an exploded view of the access module.

Fig. 5 is an exploded view of the pipe jig device.

Fig. 6 is an exploded view of the upper and lower shoe assemblies.

Fig. 7 is a schematic structural view of a harness threading pipe of the background art and the present patent.

Detailed Description

As shown in fig. 1, a wire harness threading pipe welding machine comprises a frame 1, and a pipe conveying device 2, a connecting lug feeding device 3, a pipe jig device 4, a feeding seat assembly 5 and a discharging seat assembly 6 which are arranged on the frame 1; the engaging lug loading attachment 3 evenly set up in the periphery of adorning at pipeline tool subassembly 4, material loading seat subassembly 5 and feed socket subassembly 6 install in the both sides of pipeline tool subassembly 4, pipeline handling device 2 be located pipeline tool subassembly 4, detect the top of feed socket subassembly 5 and feed socket subassembly 6.

The pipeline carrying device 2 is used for carrying, loading and unloading pipelines; the pipeline jig device 4 is used for positioning and clamping a pipeline to be welded, and the connecting lug feeding device 3 is used for feeding the connecting lugs; the connecting lug feeding device is matched with the pipeline jig device to complete welding of the connecting lug and the pipeline; the feeding seat assembly 5 is used for pipeline feeding and positioning before feeding, and the discharging seat assembly 6 is used for testing during discharging and discharging. The connecting lug feeding device 3 is a connecting lug feeding device of a wire harness threading pipe welding machine.

As shown in fig. 2, the pipe-handling apparatus 2 includes a support 21, a traverse cylinder 22, and a gripping assembly 23; the clamping assembly 23 is movably connected to the support 21 through a sliding rail, and the support 21 is fixed on the rack; the transverse moving cylinder 22 is horizontally arranged on the support 21, the telescopic end of the transverse moving cylinder 22 is connected with the clamping assemblies 23, the clamping assemblies 23 are provided with three groups at equal intervals, and the adjacent clamping assemblies 23 are connected through fisheye joints; the clamping assembly 23 comprises a lifting cylinder 231, a mounting plate 232, a finger cylinder 233 and a clamping plate 234; the finger cylinder 233 is movably connected to the mounting plate 232 through a sliding rail, the lifting cylinder 231 is arranged on the mounting plate 232, and the telescopic end of the lifting cylinder 231 is connected with the finger cylinder 233; the clamping plates 234 are arranged at the two moving ends of the finger cylinder 233, and the inner sides of the clamping plates 234 are provided with circular arc concave parts.

As shown in fig. 3 and 4, the connecting lug feeding device of the wire harness threading pipe welding machine comprises a circular vibrator 31, a straight vibrator 32, a material ejecting assembly 33, a material baffle plate 34, a receiving assembly 35, a hydraulic cylinder 36, a moving plate 37 and a bottom plate 38; the circular vibrator 31 is connected with the straight vibrator 32, the discharge end of the straight vibrator 32 is connected with the material ejecting component 33, and the material baffle plate 34 is arranged on the side of the material ejecting component 33; the bottom plate 38 is fixed on the rack, a guide post is arranged on the bottom plate 38, the moving plate 37 is movably connected to the bottom plate 38 through the guide post, a return spring is arranged between the moving plate 37 and the bottom plate 38, and the return spring presses the moving plate 37 to the inner side; a square hole is formed in the moving plate 37, and the material ejecting assembly 33 is located in the square hole; the hydraulic cylinder 36 is arranged on the moving plate 37, the receiving assembly 35 is arranged on the telescopic end of the hydraulic cylinder 36, and the receiving assembly 35 is positioned above the material ejecting assembly 33.

The straight vibrator 32 is provided with a material rail, and the shape of the material rail 321 is suitable for the movement of the connecting lug.

The material blocking plate 34 is provided with a proximity sensor 341, the proximity sensor 341 is over against the material rail of the direct vibration 32, and the proximity sensor 341 is used for controlling the movement of the material ejecting assembly 33.

The ejection assembly 33 comprises an ejection cylinder 331 and an ejection plate 332; the ejector plate 332 is installed at the telescopic end of the ejector cylinder 331, a groove is formed in the top of the ejector plate 332 and used for placing a connecting lug, and a vertical plane is arranged on one side, close to the material rail 321, of the ejector plate 332 and attached to the end portion of the material rail 321; the top side of the ejector plate 332 is provided with a notch, and the notch is used for clamping the edge of the connecting lug by the receiving component 35.

The receiving assembly 35 comprises a first positive electrode block 351, a second positive electrode block 352, a cushion seat 353, a fixed clamping block 354, a butting seat 355, a movable clamping block 356 and a compression spring 357; the second positive electrode block 352 is fixedly connected with the first positive electrode block 351, the first positive electrode block 351 and the second positive electrode block 352 are made of copper materials, flow channels are arranged inside the first positive electrode block 351 and the second positive electrode block 352, and insulating cooling liquid is arranged in the flow channels; the pad seat 353 is arranged at the end part of the second positive electrode block 352, and the pad seat 353 is provided with an arc surface corresponding to the connecting lug; the pad 353 is made of copper material with good conductivity; the fixed clamping block 354 is fixedly arranged at the side end of the second positive electrode block 352, the abutting seat 355 is fixedly arranged at the other side end of the second positive electrode block 352, the movable clamping block 356 is matched in the abutting seat 355, the pressing spring 357 is arranged between the abutting seat 355 and the movable clamping block 356, and the movable clamping block 356 is pressed on the cushion seat 353; the movable clamp block 356 is provided with a transverse groove 3561 on the side thereof, and the transverse groove is used for clamping the main connecting lug to prevent the connecting lug from falling.

A method for feeding a wire harness threading pipe connecting lug uses the connecting lug feeding device, when in work, the connecting lug is fed into a material ejecting plate 332 by a circular vibration 31 and a straight vibration 32, and then the material ejecting plate 332 is lifted by an ejecting cylinder 331; the engaging lugs are clamped between the fixed clamping blocks 354 and the movable clamping blocks 356, and then the hydraulic cylinders 36 extend to send out the engaging lugs to be close to the outer wall of the pipeline, so that feeding is realized.

The connecting lug feeding device solves the problems that the connecting lug is small in structure, difficult to clamp and complex in feeding action; the connecting lug needs to be transported, positioned and welded when being welded, and the efficiency among a plurality of working procedures is low; the connecting lugs are clamped by the fixed clamping blocks 354 and the movable clamping blocks 356, unnecessary power parts are cancelled by controlling the clamping force through the springs, and the mechanism is simple and reliable, clamps the connecting lugs and is clamped by the transverse grooves 3561, so that the clamping is more stable, and the falling is prevented; the connection lug is separated, conveyed, positioned and clamped through the material ejecting assembly 33, and the conveying precision and efficiency can be improved in a mode of passively feeding the connection lug to a specified position; welding is carried out in a butt-joint mode, and the welding efficiency is high.

As shown in fig. 5, the pipe jig device 4 includes a bracket 41, a clamping cylinder 42, a tapered column 43 and a positioning assembly 44; the bracket 41 is fixedly arranged on the frame, the clamping cylinder 42 is arranged in the center of the bracket 41, and the tapered column 43 is arranged at the telescopic end of the clamping cylinder 42; the positioning assembly 44 is movably connected to the rack through the moving plate 37; the outer end of the conical column 43 is provided with a conical surface, and the positioning component 44 corresponds to the conical column 43; the bracket 41 is provided with trisected mounting platforms 411, and the positioning assembly 44 is provided with three groups which are uniformly arranged around the conical column 43; the positioning assembly 44 comprises a first negative electrode 441, a second negative electrode 442, a placing block 443, a clamping block 444 and an outward expansion plate 445; the second negative electrode 442 is mounted on the first negative electrode 441, the outward expansion plate 445 is arranged on the side surface of the second negative electrode 442, and the clamping block 444 is mounted on the other side surface of the second negative electrode 442; the placing block 443 is fixedly arranged at the upper end of the second negative electrode 442; the first negative electrode 441 and the second negative electrode 442 are made of copper materials, the first negative electrode 441 and the second negative electrode 442 are internally provided with channels, and circulating cooling oil is arranged in the channels; the inner side of the outward expanding plate 445 is provided with a conical surface which corresponds to the conical column 43; the side surface of the clamping block 444 is provided with an arc surface, and the curvature of the arc surface is matched with that of the pipeline; the placing block 443 is provided with a stepped groove 4431, and the stepped groove 4431 is used for placing a pipeline; the external expansion plate 445 is made of a material with good electric conductivity.

The first positive electrode block 351 is connected with the positive electrode of the welding power supply, and the first negative electrode 441 is connected with the negative electrode of the welding power supply.

When the pipeline jig device 4 works, a pipeline is vertically placed on the placing block 443, then the clamping cylinder 42 drives the conical column 43 to move upwards, three outward expanding plates 445 are simultaneously expanded outwards due to the action between conical surfaces, and the interior of the pipeline is pushed outwards when the clamping block 444 is expanded outwards, so that positioning is realized; when the pipeline is loosened, the conical column 43 descends, and the three positioning assemblies 44 are pushed inwards under the action of the springs; the engaging lug is gradually moved out under the action of the hydraulic cylinder 36 to be close to the pipeline, and the engaging lug is welded and connected with the contact point of the pipeline when the positive electrode and the negative electrode are discharged.

The pipeline jig device 4 solves the problems that the pipeline positioning center is difficult to find, the circular part needs to rotate when being uniformly welded on the circumference, and the efficiency is low; the pipeline is deformed by applying pressure, and the roundness is influenced; the three outer expanding plates 445 and the matched conical column 43 are arranged for transmission, so that the centers of the pipelines can be found more easily when the three outer expanding plates 445 move; by arranging the clamping block 444, the clamping block can be positioned and clamped and can also serve as an electrode in butt welding, so that the positioning and welding steps are simplified, and the welding efficiency is improved; the three directions are processed simultaneously, so that the acting force can be offset, and the welding precision is improved; through conical surface transmission, can improve the clamp force, also can prevent direction drive, carry out the auto-lock, better protection clamping cylinder 42.

As shown in fig. 6, the feeding base assembly 5 includes a feeding base 51, a first sink block 52, a hole positioning cylinder 53 and a positioning pin 54; the feeding seat 51 is fixed on the frame, the first counter sink block 52 is installed on the feeding seat 51, the positioning pin 54 is arranged at the telescopic end of the hole positioning cylinder 53, the hole positioning cylinder 53 is installed at the side of the feeding seat 51, and the positioning pin 54 corresponds to a round hole at the side of the pipeline. The blanking seat assembly 6 comprises a blanking seat 61, a second sink block 62, a positioning convex column 63 and a photoelectric sensor 64; the positioning convex columns 63 are arranged on the blanking seat 61, the upper ends of the positioning convex columns 63 are in a dome shape, the photoelectric sensors 64 correspond to the side of each positioning convex column 63, and the photoelectric sensors 64 detect whether the connection lug is successfully assembled.

A wire harness threading pipeline welding method uses the wire harness threading pipeline welding machine to sequentially pass through the following steps:

feeding a pipeline: the pipeline to be assembled is placed in the feeding seat 51, and the clamping assembly 23 of the pipeline conveying device 2 conveys the pipeline to the pipeline jig device 4 after clamping the pipeline; then the clamping cylinder 42 drives the conical column 43 to move upwards, three outward expanding plates 445 are simultaneously expanded outwards due to the action between conical surfaces, and the clamping blocks 444 outwards push the interior of the pipeline outwards when being expanded, so that positioning is realized; when the pipeline is loosened, the conical column 43 descends, and the three positioning assemblies 44 are pushed inwards under the action of the springs;

(II) feeding a connecting lug: the circular vibration 31 and the direct vibration 32 send the connecting lugs to the ejector plate 332, and then the ejector cylinder 331 lifts the ejector plate 332; the connecting lug is clamped between the fixed clamping block 354 and the movable clamping block 356, and then the hydraulic cylinder 36 extends to send out the connecting lug to be close to the outer wall of the pipeline, so that feeding is realized;

and (III) welding the connecting lugs: the connecting lug is gradually moved out under the action of the hydraulic cylinder 36 and is close to the pipeline, and the connecting lug is welded and connected with the contact point of the pipeline when the positive electrode and the negative electrode are discharged;

(IV) blanking: the pipe transfer device 2 transfers the welded pipe to the blanking stand 61, and the photoelectric sensor 64 detects whether the assembly is successful, and then the pipe transfer device 2 transfers the blanking.

Claims

1. A connecting lug feeding device of a wire harness threading pipeline welding machine is characterized by comprising a circular vibrator (31), a straight vibrator (32), a material ejecting assembly (33), a material baffle plate (34), a receiving assembly (35), a hydraulic cylinder (36), a moving plate (37) and a bottom plate (38); the circular vibrator (31) is connected with the straight vibrator (32), the discharge end of the straight vibrator (32) is connected with the ejection assembly (33), and the material baffle plate (34) is arranged on the side of the ejection assembly (33); the bottom plate (38) is fixed on the rack, a guide post is arranged on the bottom plate (38), the moving plate (37) is movably connected to the bottom plate (38) through the guide post, a return spring is arranged between the moving plate (37) and the bottom plate (38), and the moving plate (37) is pressed inwards by the return spring; a square hole is formed in the moving plate (37), and the material ejecting assembly (33) is located in the square hole; the hydraulic cylinder (36) is arranged on the moving plate (37), the receiving assembly (35) is arranged on the telescopic end of the hydraulic cylinder (36), and the receiving assembly (35) is positioned above the material ejecting assembly (33);

the receiving assembly (35) comprises a first positive electrode block (351), a second positive electrode block (352), a cushion seat (353), a fixed clamping block (354), a butting seat (355), a movable clamping block (356) and a compression spring (357); the second positive electrode block (352) is fixedly connected with the first positive electrode block (351); the base (353) is arranged at the end part of the second positive electrode block (352), and the base (353) is provided with an arc surface corresponding to the connecting lug; the fixed clamping block (354) is fixedly arranged at the side end of the second positive electrode block (352), the abutting seat (355) is fixedly arranged at the other side end of the second positive electrode block (352), the movable clamping block (356) is matched in the abutting seat (355), and the pressing spring (357) is arranged between the abutting seat (355) and the movable clamping block (356) to press the movable clamping block (356) on the cushion seat (353); the side surface of the movable clamping block (356) is provided with a transverse groove (3561).

2. The connecting lug feeding device of the wire harness threading pipe welding machine as claimed in claim 1, wherein the first positive electrode block (351) and the second positive electrode block (352) are made of copper materials, flow channels are arranged inside the first positive electrode block (351) and the second positive electrode block (352), and insulating cooling liquid is arranged in the flow channels.

3. The connecting lug feeding device of a wire harness threading pipe welding machine as claimed in claim 1, wherein said pad seat (353) is made of copper material with good electrical conductivity.

4. A lug feeding device of a wire harness threading pipe welding machine according to claim 2, characterized in that the straight vibrator (32) is provided with a material rail, and the material rail (321) is shaped to move along the lug.

5. The connecting lug feeding device of the wire harness threading pipe welding machine according to the claim 4, characterized in that the ejection assembly (33) comprises an ejection cylinder (331) and an ejection plate (332); the ejector plate (332) is installed at the telescopic end of the ejector cylinder (331), the top of the ejector plate (332) is provided with a groove, the groove is used for placing a connecting lug, one side of the ejector plate (332), which is close to the material rail (321), is provided with a vertical plane, and the plane is attached to the end part of the material rail (321); and a notch is arranged on the side of the top end of the ejector plate (332), and the notch is used for clamping the edge of the connecting lug by the receiving assembly (35).

6. The connecting lug feeding device of the wire harness threading pipe welding machine according to claim 1, wherein a proximity sensor (341) is arranged on the striker plate (34), the proximity sensor (341) is opposite to a material rail of the straight vibration (32), and the proximity sensor (341) is used for controlling the movement of the material ejecting assembly (33).

7. A feeding method of a connecting lug of a wire harness threading pipe is characterized in that the method adopts the feeding device of the connecting lug of the wire harness threading pipe welding machine as claimed in claim 5, a circular vibration (31) and a straight vibration (32) send the connecting lug to an ejector plate (332), and then an ejector cylinder (331) lifts the ejector plate (332); make the engaging lug card between fixed clamp splice (354) and activity clamp splice (356), then hydraulic cylinder (36) extension is seen off the engaging lug, is close to the pipeline outer wall, realizes the material loading.

8. A wire harness threading pipe welding machine is characterized by comprising a rack (1) and a connecting lug feeding device (3) arranged on the rack; the connecting lug feeding device (3) adopts the connecting lug feeding device of the wire harness threading pipe welding machine as claimed in any one of claims 1 to 6.